The weather factors and the importance of the weather prediction

What is the meaning of the weather ?

Theweather is the expected conditions of the atmosphereat a certain area during a short period of time , not exceeding one week , Every day , You can know the weather news through theweather forecast .

The weather forecast includes the weather factors which are : The temperature , The winds ,The atmosphericpressure , the clouds and the rain .

The temperature

The temperature can be measured by the mercuric thermometer , and the digital thermometer .

There is a maximum temperature which is the temperature expected during the daytime and there is a minimum temperature which is the temperature expected at the night .

The winds

The wind is the movement of the air from the regions of the high atmospheric pressure to the regions of the low atmospheric pressure .

The rise of the sea waves is caused by the wind speed . The wind direction is determined by the wind vane , and the wind speed is measured by the anemometer .

The clouds and the rain

When you look at the sky , You notice that the clouds increase in the coastal regions , and the sky is clear in the desert regions .

The clouds are formed when the water in the seas , the lakes and the oceans evaporates by the effect of the sun raysto form the water vapour . which rises in the sky , then it cooled and condensed to form the clouds .

The rain are formed when the clouds move by the effect of the winds , and the volume of the water drops in the clouds increases , then the air can not carry them , So the rains fall .

The importance of the weather prediction

People should follow the weather forecast as it gives them the prediction of the temperature , the pressure , the rain , the winds and the clouds.

People must wear the heavy clothes , when the weather forecast predicts that the temperaturewill be low .

If it predicts that the wind will be strong and the sea waves will be high , So , the ships and the fishing boats should not sail during this time .

If it predicts that the morning is foggy , So , The car drivers should slow down to avoid the accidents .

If it predicts that the rains will fall , So , People must wear the raincoats and use the umbrellas . and the farmers should know the best time for the irrigation .